Method of cutting narrow strips from a roller of cellulose material



Patented Dec. 25, 1923.

UNITED STATES PATENT I oFFrcs.

ADOLF SCHEUFELEN AND FRITZ SCHUMACHER, F OBEBLENNINGEN-TECK, GER- MANY, ASSIGNORS TO THE FIR/M ERSTE DEUTSCHE KUNSTDRUGK-PAPIERFABRIK CARL SCHEUFELEN, OF OBERLENNINGEN-TECK, GERMANY.

METHOD OF CUTTING NARROW STRIPS FROM A ROLLER 0F OELLULOSE MATERIAL.

No Drawing.

To all whom, it may concern:

Be it known that we, Dr. ADOLF Scrum rELEN and F nI'rz SoHUMAoHnR, citizens of the German Republic, residing at Oberlenningen-Teck, in the State of Wurttemberg, Germany, have invented certain new and useful Improvements in a Method of Cutting Narrow Strips from a Roller of Cellulose Material, of which the following is a specification.

Our invention relates to an improved method of cutting narrow strips from a roller of cellulose-material, for the purpose of twisting said strips into ayarn qualified for being spun. Said method consists in passing a blade through the rolled up sheet of cellulose-material as it is delivered from the paper-machine, and the particular feature of novelty of our invention resides indraining said roll of cellulose-material, before rolling up the same, only to that degree, as is required for the subsequent spinning of the said strips.

e are aware that it is known to cut a narrow strip from a roll of cellulose-material by a blade passing through the said roll and that it is also known to, make undergo the said roll first a process of complete drying and then to Wet the roll before cutting the same into strips. But is has been found by experience, that a thread prepared by such method does not at all resist moisture for any length of time. Besides, it is not Application filed May 12, 1921. Serial No. 468,964.

economical first to waste a good deal of heat in drying the material and then to restore a certain degree ofthe moisture.

According to our invention, the wet sheet of cellulose-material, as it comes from the wet-press, or from a drying-cylinderof a sifting-cloth or a dandy-roller o f-a coarsedrying-machine is only subjected to a draining process which leaves sufiicient moisture as is required for the subsequent spinning process of the strips. The wet sheet is either rolledup in its full width or is divided into several sheets if the Width is inconvenient. The cutting-process is preferably performed by a thin circular blade rotating with great speed, while the rolled up sheet slowly turns. But the circular blade can of course be an endless, flexible blade like aribbon-saw or by a reciprocating blade, below which the roll to be out is revolved, with great speed. i

What we claim is:

The method herein described which consists in partially drying a whole sheet of cellulose material, leaving therein the re quired amount of moisture, then rolling up the said sheet and finally cutting the rolled up sheet into narrow strips.

In testimony whereofwe have atfixed our signatures.

DR. ADOLF, SCHEUFELEN. FRITZSOHUMACHER. 

